Patents by Inventor Yasuyuki Takeda
Yasuyuki Takeda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20240092084Abstract: A technique capable of certainly suppressing adhesion of waste ink to hands, clothes, and the like during replacement of a waste ink tank is provided. There are included a container portion provided with an insertion port which a discharge member discharging waste ink can be inserted into and pulled out from and a shielding portion movable between a shielding position where the insertion port is shielded and an open position where the insertion port is opened.Type: ApplicationFiled: September 11, 2023Publication date: March 21, 2024Inventors: KOKI SHIMADA, TOSHIAKI SOMANO, YUTA ARAKI, KAORI KATAYAMA, YUSUKE TANAKA, TETSU HAMANO, ERIKA IYAMA, FUMIE KAMEYAMA, NOBUHIRO TOKI, YASUYUKI TAKANAKA, DAIJU TAKEDA
-
Patent number: 11880059Abstract: A backlight for providing illumination to a liquid crystal panel includes a reflective polarizer and an extended light source. The extended light source includes a diffuse reflective film assembly and an emission surface disposed between the reflective polarizer and the diffuse reflective film assembly. The extended light source is configured to emit light through the emission surface toward the reflective polarizer. The diffuse reflective film assembly includes a specularly reflective film and an optically diffusive film disposed between the emission surface and the specularly reflective film. The optically diffusive film is bonded to the specularly reflective film at a plurality of discrete spaced apart bonded locations with a total bonding area of less than about 20%.Type: GrantFiled: August 26, 2020Date of Patent: January 23, 2024Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventor: Yasuyuki Takeda
-
Publication number: 20220341356Abstract: In an exhaust gas purification catalyst, a catalytic component (100) containing a first oxide (21), a second oxide (22), and a precious metal (30) is supported on a three-dimensional structure (10); the ratio of the amount of precious metal (30) supported on the first oxide (21) to the total amount of precious metal (30) supported on the first oxide (21) and precious metal (30) supported on the second oxide (22), or the ratio of the amount of precious metal (30) supported on the second oxide (22) to the total amount of precious metal (30) supported on the first oxide (21) and precious metal (30) supported on the second oxide (22) is 70% or more to 100% or less, as measured by an electron probe microanalyzer (EPMA); and the amount of carbon monoxide that the precious metal (30) can adsorb per unit mass is 15 mL/g or more to 100 mL/g or less.Type: ApplicationFiled: October 6, 2020Publication date: October 27, 2022Applicant: UMICORE SHOKUBAI JAPAN CO., LTD.Inventors: Yasuyuki TAKEDA, Shigekazu MINAMI
-
Publication number: 20220299698Abstract: A backlight for providing illumination to a liquid crystal panel includes a reflective polarizer and an extended light source. The extended light source includes a diffuse reflective film assembly and an emission surface disposed between the reflective polarizer and the diffuse reflective film assembly. The extended light source is configured to emit light through the emission surface toward the reflective polarizer. The diffuse reflective film assembly includes a specularly reflective film and an optically diffusive film disposed between the emission surface and the specularly reflective film. The optically diffusive film is bonded to the specularly reflective film at a plurality of discrete spaced apart bonded locations with a total bonding area of less than about 20%.Type: ApplicationFiled: August 26, 2020Publication date: September 22, 2022Inventor: Yasuyuki Takeda
-
Patent number: 11034659Abstract: Cystic fibrosis is developed through mutation of Cystic Fibrosis Transmembrane conductance Regulator (CFTR), which is one type of chloride channel. An object of the present invention is to provide compounds effective in the treatment of cystic fibrosis that open a chloride channel different from CFTR, which is the cause of the disease, and do not depend on CFTR. Compounds of the present invention are compounds or pharmaceutically acceptable salts thereof that open calcium dependent chloride channels (CaCCs) via G-protein coupled receptor 39 (GPR39) agonism to have strong chloride ion-secretory action, and are represented by the following general formula (I): General formula (I): wherein, X represents a carboxyl group or a tetrazolyl group; Q represents a C1-C3 alkylene group, an oxygen atom, a sulfur atom, etc.; G represents a phenyl group where the phenyl group may have 1 to 3 substituents independently selected from the group consisting of a halogen atom, a cyano group, a C1-C6 alkyl group, etc.Type: GrantFiled: December 26, 2017Date of Patent: June 15, 2021Assignee: Daiichi Sankyo Company, LimitedInventors: Yasuyuki Takeda, Yamato Suzuki, Toshiharu Noji, Hidenobu Murafuji, Satoshi Muneoka, Hidekazu Inoue, Bitoku Takahashi, Rie Inaba
-
Publication number: 20200172494Abstract: Cystic fibrosis is developed through mutation of Cystic Fibrosis Transmembrane conductance Regulator (CFTR), which is one type of chloride channel. An object of the present invention is to provide compounds effective in the treatment of cystic fibrosis that open a chloride channel different from CFTR, which is the cause of the disease, and do not depend on CFTR. Compounds of the present invention are compounds or pharmaceutically acceptable salts thereof that open calcium dependent chloride channels (CaCCs) via G-protein coupled receptor 39 (GPR39) agonism to have strong chloride ion-secretory action, and are represented by the following general formula (I): General formula (I): wherein, X represents a carboxyl group or a tetrazolyl group; Q represents a C1-C3 alkylene group, an oxygen atom, a sulfur atom, etc.; G represents a phenyl group where the phenyl group may have 1 to 3 substituents independently selected from the group consisting of a halogen atom, a cyano group, a C1-C6 alkyl group, etc.Type: ApplicationFiled: December 26, 2017Publication date: June 4, 2020Applicant: Daiichi Sankyo Company, LimitedInventors: Yasuyuki Takeda, Yamato Suzuki, Toshiharu Noji, Hidenobu Murafuji, Satoshi Muneoka, Hidekazu Inoue, Bitoku Takahashi, Rie Inaba
-
Patent number: 9751887Abstract: The present invention is intended to provide a compound or a pharmacologically acceptable salt thereof which is useful in the treatment of a tumor through its ROS1 kinase enzyme activity inhibitory effect and NTRK kinase enzyme inhibitory effect. The present invention provides a compound having an imidazo[1,2-b]pyridazine structure represented by the general formula (I) or a pharmacologically acceptable salt thereof, and a pharmaceutical composition comprising the compound. In the formula, R1, G, T, Y1, Y2, Y3, and Y4 are as defined herein.Type: GrantFiled: October 29, 2015Date of Patent: September 5, 2017Assignee: Daiichi Sankyo Company, LimitedInventors: Yasuyuki Takeda, Kenji Yoshikawa, Yoshiko Kagoshima, Yuko Yamamoto, Ryoichi Tanaka, Yuichi Tominaga, Masaki Kiga, Yoshito Hamada
-
Publication number: 20160046639Abstract: The present invention is intended to provide a compound or a pharmacologically acceptable salt thereof which is useful in the treatment of a tumor through its ROS1 kinase enzyme activity inhibitory effect and NTRK kinase enzyme inhibitory effect. The present invention provides a compound having an imidazo[1,2-b]pyridazine structure represented by the general formula (I) or a pharmacologically acceptable salt thereof, and a pharmaceutical composition comprising the compound. In the formula, R1, G, T, Y1, Y2, Y3, and Y4 are as defined herein.Type: ApplicationFiled: October 29, 2015Publication date: February 18, 2016Applicant: Daiichi Sankyo Company, LimitedInventors: Yasuyuki Takeda, Kenji Yoshikawa, Yoshiko Kagoshima, Yuko Yamamoto, Ryoichi Tanaka, Yuichi Tominaga, Masaki Kiga, Yoshito Hamada
-
Patent number: 9187489Abstract: The present invention is intended to provide a compound or a pharmacologically acceptable salt thereof which is useful in the treatment of a tumor through its ROS1 kinase enzyme activity inhibitory effect and NTRK kinase enzyme inhibitory effect. The present invention provides a compound having an imidazo[1,2-b]pyridazine structure represented by the general formula (I) or a pharmacologically acceptable salt thereof, and a pharmaceutical composition comprising the compound. In the formula, R1, G, T, Y1, Y2, Y3, and Y4 are as defined herein.Type: GrantFiled: June 3, 2013Date of Patent: November 17, 2015Assignee: Daiichi Sankyo Company, LimitedInventors: Yasuyuki Takeda, Kenji Yoshikawa, Yoshiko Kagoshima, Yuko Yamamoto, Ryoichi Tanaka, Yuichi Tominaga, Masaki Kiga, Yoshito Hamada
-
Publication number: 20150051190Abstract: The present invention is intended to provide a compound or a pharmacologically acceptable salt thereof which is useful in the treatment of a tumor through its ROS1 kinase enzyme activity inhibitory effect and NTRK kinase enzyme inhibitory effect. The present invention provides a compound having an imidazo[1,2-b]pyridazine structure represented by the general formula (I) or a pharmacologically acceptable salt thereof, and a pharmaceutical composition comprising the compound. In the formula, R1, G, T, Y1, Y2, Y3, and Y4 are as defined herein.Type: ApplicationFiled: June 3, 2013Publication date: February 19, 2015Applicant: Daiichi Sankyo Company, LimitedInventors: Yasuyuki Takeda, Kenji Yoshikawa, Yoshiko Kagoshima, Yuko Yamamoto, Ryoichi Tanaka, Yuichi Tominaga, Masaki Kiga, Yoshito Hamada
-
Patent number: 7842818Abstract: The present invention provides a method for effectively producing an optically active form of tetrasubstituted-5-azaspiro[2.4]heptane derivative, which serves as a useful production intermediate for quinolonecarboxylic acid antibacterial agents, and intermediates for the derivative. The present invention is directed to a method for producing a compound (VII) according to the following scheme.Type: GrantFiled: September 28, 2006Date of Patent: November 30, 2010Assignee: Daiichi Sankyo Company, LimitedInventors: Hisashi Takahashi, Rie Miyauchi, Yasuyuki Takeda, Kazuo Kanai, Junichi Kuroyanagi, Satoshi Komoriya, Makoto Takemura
-
Patent number: 7727426Abstract: Disclosed is an epoxy resin composition which is solid at ordinary room temperature, cures with excellent light resistance and heat resistance and minimal shrinkage, and is useful for encapsulating LEDs. The epoxy resin composition is characterized by comprising as an essential component an epoxy resin having an epoxy equivalent of 300-1000 g/eq and a softening point of 65-110° C. obtained by reacting a nonaromatic polycarboxylic acid (A) having an acid value of 100-250 mgKOH/g with a nonaromatic epoxy resin (B) having an epoxy equivalent of 100-400 g/eq. The nonaromatic polycarboxylic acid (A) may be obtained by reacting 1,4-cyclohexanedimethanol, 2,2-bis(4-hydroxycyclohexyl)propane, or 3,9-bis(1,1-dimethyl-2-hydroxyethyl)-2,4,8,10-tetraoxaspiro[5,5]undecane with methylhexahydrophthalic acid or hexahydrophthalic acid.Type: GrantFiled: August 23, 2006Date of Patent: June 1, 2010Assignee: Nippon Steel Chemical Co., Ltd.Inventors: Kazumasa Kobayashi, Chiaki Asano, Hiroshi Sato, Yasuyuki Takeda, Kazuhiko Yoshida
-
Publication number: 20090270637Abstract: The present invention provides a method for effectively producing an optically active form of tetrasubstituted-5-azaspiro[2.4]heptane derivative, which serves as a useful production intermediate for quinolonecarboxylic acid antibacterial agents, and intermediates for the derivative. The present invention is directed to a method for producing a compound (VII) according to the following scheme.Type: ApplicationFiled: September 28, 2006Publication date: October 29, 2009Applicant: Daiichi Sankyo Company, LimitedInventors: Hisashi Takahashi, Rie Miyauchi, Yasuyuki Takeda, Kazuo Kanai, Junichi Kuroyanagi, Satoshi Komoriya, Makoto Takemura
-
Publication number: 20090215969Abstract: Disclosed is an epoxy resin composition which is solid at ordinary room temperature, cures with excellent light resistance and heat resistance and minimal shrinkage, and is useful for encapsulating LEDs. The epoxy resin composition is characterized by comprising as an essential component an epoxy resin having an epoxy equivalent of 300-1000 g/eq and a softening point of 65-110° C. obtained by reacting a nonaromatic polycarboxylic acid (A) having an acid value of 100-250 mgKOH/g with a nonaromatic epoxy resin (B) having an epoxy equivalent of 100-400 g/eq. The nonaromatic polycarboxylic acid (A) may be obtained by reacting 1,4-cyclohexanedimethanol, 2,2-bis(4-hydroxycyclohexyl)propane, or 3,9-bis(1,1-dimethyl-2-hydroxyethyl)-2,4,8,10-tetraoxaspiro[5,5]undecane with methylhexahydrophthalic acid or hexahydrophthalic acid.Type: ApplicationFiled: August 23, 2006Publication date: August 27, 2009Applicant: NIPPON STEEL CHEMICAL CO., LTDInventors: Kazumasa Kobayashi, Chiaki Asano, Hiroshi Sato, Yasuyuki Takeda, Kazuhiko Yoshida
-
Publication number: 20090186868Abstract: A compound represented by the general formula (1) [X1 and X2 represent hydrogen atom, a halogen atom, hydroxyl group and the like, R1 represents a phenyl group, R2 represents an alkyl group, an alkenyl group, or an alkoxy group, R3 represents hydrogen atom, a halogen atom, hydroxyl group, or an alkoxy group, R4 represents hydrogen atom, or an alkyl group, Z1 and Z2 represent hydrogen atom, a halogen atom, hydroxyl group and the like, Z3 represents cyano group, an alkyl group, an alkenyl group and the like, Z4 represents an alkyl group, an alkenyl group, an alkynyl group and the like, and represents a single bond or a double bond], which shows high antitumor effect against cancer cells including drug resistant cells.Type: ApplicationFiled: October 24, 2006Publication date: July 23, 2009Applicant: Daiichi Sankyo Company LimitedInventors: Kouichi Uoto, Yasuyuki Takeda, Atsunobu Sakamoto, Yoshihiro Takayanagi
-
Publication number: 20070202339Abstract: This invention relates to an epoxy resin composition suitable for a solvent-free, one-component, room temperature-curable coating composition and to an epoxy-polysiloxane coating composition showing good adhesion to steel plates and the like and excellent weatherability. This epoxy resin composition comprises (a) an epoxy resin with an epoxy equivalent of 100-1000 g/eq., (b) a silane compound represented by the following general formula (1) Si(R1R2R3R4)??(1) (wherein R1 is an alkyl group of 1-6 carbon atoms and R2-R4 are hydrogen atoms, alkyl groups of 1-10 carbon atoms, aryl groups, hydroxyl groups, or alkoxy groups of 1-6 carbon atoms) and a condensate thereof, and (c) a phosphoric acid represented by the following general formula (2) H(n+2)PnO(3n+1)??(2) as essential components.Type: ApplicationFiled: August 3, 2005Publication date: August 30, 2007Applicant: NIPPON STEEL CHEMICAL CO., LTD.Inventors: Mutsumi Yoshida, Kazuaki Nishiyama, Nobuyuki Furukawa, Yasuyuki Takeda, Makoto Matsuura
-
Publication number: 20050025912Abstract: To provide an image-recording medium, which can form a high quality image thereon without yellowing (the shift of color tone) or the blotting of the ink with both the dye ink and the pigment ink. An image-recording medium having a support having breathing micropores, the surfaces and the micropores of which are made hydrophilic, and an ink-receptive layer which is provided on the surface of the support and comprises a binder and a coagulant, characterized in that the ink-receptive layer contains a cationic organic oligomer having a cationic functional group in the molecule, or a cationic polymer having a cationic functional group in the molecule as a coagulant.Type: ApplicationFiled: May 23, 2002Publication date: February 3, 2005Inventor: Yasuyuki Takeda
-
Patent number: 6807480Abstract: A vicinity search using register point data in a designated area reduces search time. The vicinity search data include at least category information, names of register points and country information. The search device conducts the vicinity search by specifying any one of category information to which the register points belong, names of the register points and country information, or a combination, by option and display. The search device further uses category information with flags representing the presence and absence of the register point data, whereby the register point data are searched by referring to the flags.Type: GrantFiled: August 4, 2000Date of Patent: October 19, 2004Assignee: Aisin AW Co., Ltd.Inventors: Hironari Iwasaki, Shogo Ito, Kazuhiro Ikeda, Koji Kato, Yasuyuki Takeda
-
Publication number: 20040126508Abstract: To provide an image-recording medium, which has increased adhesion between an image-receptive layer and a retroreflective sheet, can easily increase the outdoor durability including water resistance, and can effectively increase the retroreflection luminance of an image-recorded surface.Type: ApplicationFiled: February 24, 2003Publication date: July 1, 2004Inventor: Yasuyuki Takeda
-
Patent number: 6677456Abstract: This invention is to provide a novel taxol derivative useful as an antitumor compound having respective substituent groups, represented by the following formula (I) which can be orally administeredType: GrantFiled: March 6, 2002Date of Patent: January 13, 2004Assignee: Daiichi Pharmaceutical Co., Ltd.Inventors: Tsunehiko Soga, Kouichi Uoto, Yasuyuki Takeda